Requested by Rod,
To base the brush size on Y-coordinate (to create fake 3D perspective effect).
Click here for download --> Follow Path with Perspective Brush for GIMP
| GIMP Chat http://gimpchat.com/ |
|
| Follow Path With Perspective Brush for GIMP http://gimpchat.com/viewtopic.php?f=9&t=14849 |
Page 1 of 2 |
| Author: | trandoductin [ Wed Nov 02, 2016 1:34 pm ] |
| Post subject: | Follow Path With Perspective Brush for GIMP |
Requested by Rod, To base the brush size on Y-coordinate (to create fake 3D perspective effect). Click here for download --> Follow Path with Perspective Brush for GIMP |
|
| Author: | trandoductin [ Wed Nov 02, 2016 2:02 pm ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
version 2 is up. Fixed a Track Direction (angle) bug. 
|
|
| Author: | trandoductin [ Wed Nov 02, 2016 3:41 pm ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
version 3 is up. Added forgotten progress bar updates for friendliness. and here's a sample run of paths where i drew rows of trees. 
|
|
| Author: | trandoductin [ Wed Nov 02, 2016 4:22 pm ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
Version 4 is up. Draws smaller brushes first because smaller brushes in the foreground would look weird in front of nearer (larger) brushes. Version 5 is up. Forgot stupid progress bar update again. 
|
|
| Author: | Rashid [ Wed Nov 02, 2016 10:51 pm ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
Hi I am sorry to say that after using different settings I am unable to get change in size in terms of perspective. Perhaps I am unable to find suitable combination of settings. I get straight line of repititive objects without diminishing size. Bye |
|
| Author: | trandoductin [ Wed Nov 02, 2016 10:54 pm ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
are you drawing a line from top to bottom? size changes based on y-coordinate. If you draw a straight horizontal line there would be no changes in size. |
|
| Author: | Rashid [ Thu Nov 03, 2016 12:25 am ] | ||
| Post subject: | Re: Follow Path With Perspective Brush for GIMP | ||
I have tried two versions but I get the same result. First tried 5th and then removed and installed 3rd version. I am attaching screenshots of the process.
|
|||
| Author: | trandoductin [ Thu Nov 03, 2016 12:40 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
what is your brush? it looks small on image 2 but how does it even fill the whole image in 3 it looks like. It should only brush along the path. |
|
| Author: | Rashid [ Thu Nov 03, 2016 1:21 am ] | ||
| Post subject: | Re: Follow Path With Perspective Brush for GIMP | ||
I have changed the brush but no perspective change.
|
|||
| Author: | trandoductin [ Thu Nov 03, 2016 1:32 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
I don't know what's the problem could be. You're using GIMP 2.8 right? I remember long time ago I wrote a script in scheme (I think it was the Green Apple Script), where i tried setting the context's brush attributes such as size and it didn't seem to do anything, i had to create a new brush myself in order for script to work. But i am using 2.8 now and setting the context's set brush size works fine now. So i am wondering if you might be using an older GIMP. Other than that possibility I don't know why is isn't working for you. |
|
| Author: | Rod [ Thu Nov 03, 2016 6:00 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
Thank you Tran. I made a gear following a gear path.  Nice filter.
|
|
| Author: | Rod [ Thu Nov 03, 2016 6:10 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
And one with smaller brush settings. The last one was 30 min and 40 max This one has the settings below.   Very Cool! 
|
|
| Author: | MareroQ [ Thu Nov 03, 2016 6:47 am ] | ||
| Post subject: | Re: Follow Path With Perspective Brush for GIMP | ||
Again, I want it in my simple shape plugin...
|
|||
| Author: | Rod [ Thu Nov 03, 2016 7:37 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
MareroQ wrote: Again, I want it in my simple shape plugin... That is a great example of this filters potential MareroQ! 
|
|
| Author: | Rashid [ Thu Nov 03, 2016 8:35 am ] | |||
| Post subject: | Re: Follow Path With Perspective Brush for GIMP | |||
Does it look-like your tree-plantaion image? Created a new Brush Dynamic with Size Variation(Size-->Pressure & Fade checked).
|
||||
| Author: | trandoductin [ Thu Nov 03, 2016 9:07 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
yes it does look like it, nice work. But are you using GIMP 2.8 or older GIMP? EDIT: for a second there i thought the script worked for you, but after looking at it carefully i notice the size variation only seem to happen at the top, it doesn't gradually happen throughout the whole y-coordinate space like the fake 3D effect. |
|
| Author: | Rashid [ Thu Nov 03, 2016 9:59 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
I am using Gimp 2.8.10. The point of concern is the result of the result of the script which is against expectation. |
|
| Author: | trandoductin [ Thu Nov 03, 2016 10:03 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
I am using 2.8.16. It's a concern but if it's an older bug in 2.8.10, I don't want to have create my own brush when the active brush is supposed to work fine. Found something related to this: https://www.bountysource.com/issues/137 ... ont-t-work. |
|
| Author: | Rashid [ Thu Nov 03, 2016 10:17 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
My discipline has been 'Plant Sciences (Botany)'. Computer programs are horrible things to me. I visited the site but couldn't understand the importance of the code for console. Apologies. |
|
| Author: | Rod [ Thu Nov 03, 2016 10:31 am ] |
| Post subject: | Re: Follow Path With Perspective Brush for GIMP |
You can actually do that with "WHEEL" and "FADE" in the brush dynamics editor (if you have the wheel in your mouse set to size increase or decrease), . BUT it will only make a small brush and then the rest larger but the same size. Your script is a whole lot different Tran. |
|
| Page 1 of 2 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|